2-Chloro-5-sulfophenylmethylpyrazolone from Japan
This is a specific aromatic pyrazolone derivative containing a chlorine and sulfonic acid group on a phenyl ring attached to a pyrazole structure. It falls under HTS 2933.19.18.00 as one of the explicitly named heterocyclic compounds with an unfused pyrazole ring that is aromatic or modified aromatic. Primarily used as an intermediate in dye synthesis and pharmaceutical production.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Provide detailed chemical analysis certificates confirming purity and structure; ensure proper UN hazardous material labeling for sulfonic acid content; avoid misclassification by verifying pyrazole ring integrity